Thank you Airmutt and DaleB. I like the single seat Mini-Max's but am right at the edge of gross weight with 5 gallons of fuel. I would like a little more cushion and more fuel than that. So I am looking at the SuperMax. I ordered the plans and wanted to study them before I commit. Still researching? I think the SuperMax may have a different wing section than the other's, but am not certain.